5:49 p.m.
I was talking earlier about putting content on the ISO to be read by e.g.
Windows users. If I want to make that content available in the live
Fedora system also, what's the best way to do that?
What I'm after is a directory on the live Fedora desktop that doesn't
waste space but shows the same content as the
There were a couple of "obvious" ways I could think of, which I'll refer
to by one would achieve them:
* mount --bind /media/cdrom/my_directory
/home/liveuser/Desktop/my_directory
* ln -s /media/cdrom/my_directory /home/liveuser/Desktop/my_directory
Both these can only expose the content read-only, which is acceptable but
less than amazing.
* have a unionfs/aufs mount that exposes the ISO's content and lets users
write using "copy-up" semantics
The downside of unionfs is that it adds complications.
Given these choices, I'd go for the symlink. Is that what you guys would
do? Is there something I'm missing?
One used to be able to make "hybrid CDs" (c.f.
http://en.wikipedia.org/wiki/Hybrid_CD ) that shared data between the HFS
filesystems and ISO9660 filesystems on them, but I imagine that's not
possible for the ISO9660 filesystem at the base of the LiveCD-Creator disc
and the squashfs inside it - right?
Thanks for the quick and sharp replies!
-- Asheesh.
--
A witty saying proves nothing.
-- Voltaire
6:41 p.m.
New subject: Making content available on both sides of the live CD
I think you're looking for something like this. If bob had a file
called 'my_file.html' in his home directory, he'd do this to copy it to
the root of the cd:
%post --nochroot
cp /home/bob/my_file.html $LIVE_ROOT/
fwiw, we had a more thorough discussion of this about a week ago on the
list.
Tim
Asheesh Laroia wrote:
I was talking earlier about putting content on the ISO to be read by
e.g. Windows users. If I want to make that content available in the
live Fedora system also, what's the best way to do that?
What I'm after is a directory on the live Fedora desktop that doesn't
waste space but shows the same content as the
There were a couple of "obvious" ways I could think of, which I'll
refer to by one would achieve them:
* mount --bind /media/cdrom/my_directory
/home/liveuser/Desktop/my_directory
* ln -s /media/cdrom/my_directory /home/liveuser/Desktop/my_directory
Both these can only expose the content read-only, which is acceptable
but less than amazing.
* have a unionfs/aufs mount that exposes the ISO's content and lets
users write using "copy-up" semantics
The downside of unionfs is that it adds complications.
Given these choices, I'd go for the symlink. Is that what you guys
would do? Is there something I'm missing?
One used to be able to make "hybrid CDs" (c.f.
http://en.wikipedia.org/wiki/Hybrid_CD ) that shared data between the
HFS filesystems and ISO9660 filesystems on them, but I imagine that's
not possible for the ISO9660 filesystem at the base of the
LiveCD-Creator disc and the squashfs inside it - right?
Thanks for the quick and sharp replies!
-- Asheesh.
--
_________________________________
Tim Wood, CLP, RHCT
719.338.7484 (tel)
The Data Wranglers
Web, Database & more since since 1994
www.datawranglers.com
6:47 p.m.
On Mon, 4 Feb 2008, Tim Wood wrote:
I think you're looking for something like this. If bob had a
file
called 'my_file.html' in his home directory, he'd do this to copy it to
the root of the cd:
%post --nochroot
cp /home/bob/my_file.html $LIVE_ROOT/
Right - but if we're talking about gigabytes of photos and music, then
that's less than ideal space-wise. Hence my bringing up Hybrid CDs.
fwiw, we had a more thorough discussion of this about a week ago on
the list.
Taking a look at
https://www.redhat.com/archives/fedora-livecd-list/2008-February/thread.html
and
https://www.redhat.com/archives/fedora-livecd-list/2008-January/thread.html
doesn't find anything obviously relevant to me - sorry if I'm just missing
something.
-- Asheesh.
--
Hurewitz's Memory Principle:
The chance of forgetting something is directly proportional
to... to... uh.....
6:51 p.m.
That's what I get for replying to emails when my brain is fried ;-)
Tim
Asheesh Laroia wrote:
On Mon, 4 Feb 2008, Tim Wood wrote:
> I think you're looking for something like this. If bob had a file
> called 'my_file.html' in his home directory, he'd do this to copy it
> to the root of the cd:
>
> %post --nochroot
> cp /home/bob/my_file.html $LIVE_ROOT/
Right - but if we're talking about gigabytes of photos and music, then
that's less than ideal space-wise. Hence my bringing up Hybrid CDs.
> fwiw, we had a more thorough discussion of this about a week ago on
> the list.
Taking a look at
https://www.redhat.com/archives/fedora-livecd-list/2008-February/thread.html
and
https://www.redhat.com/archives/fedora-livecd-list/2008-January/thread.html
doesn't find anything obviously relevant to me - sorry if I'm just
missing something.
-- Asheesh.
--
_________________________________
Tim Wood, CLP, RHCT
719.338.7484 (tel)
The Data Wranglers
Web, Database & more since since 1994
www.datawranglers.com
6:58 p.m.
Asheesh Laroia wrote:
On Mon, 4 Feb 2008, Tim Wood wrote:
> I think you're looking for something like this. If bob had a file
> called 'my_file.html' in his home directory, he'd do this to copy it
> to the root of the cd:
>
> %post --nochroot
> cp /home/bob/my_file.html $LIVE_ROOT/
Right - but if we're talking about gigabytes of photos and music, then
that's less than ideal space-wise. Hence my bringing up Hybrid CDs.
So it sounds like you really want your gigabytes to be on the HFS side
of the *DVD* right? That certainly isn't supported at the moment,
though I suppose could be made to work. (I have no idea what a hybrid
looks like (automounting and such) to the system currently).
> fwiw, we had a more thorough discussion of this about a week ago
on
> the list.
Taking a look at
https://www.redhat.com/archives/fedora-livecd-list/2008-February/thread.html
and
https://www.redhat.com/archives/fedora-livecd-list/2008-January/thread.html
doesn't find anything obviously relevant to me - sorry if I'm just
missing something.
This may be the relevent post, but doesn't add too much-
https://www.redhat.com/archives/fedora-livecd-list/2008-January/msg00080....
-dmc
7:09 p.m.
On Mon, 4 Feb 2008, Douglas McClendon wrote:
Asheesh Laroia wrote:
> On Mon, 4 Feb 2008, Tim Wood wrote:
>
>> I think you're looking for something like this. If bob had a file called
>> 'my_file.html' in his home directory, he'd do this to copy it to the
root
>> of the cd:
>>
>> %post --nochroot
>> cp /home/bob/my_file.html $LIVE_ROOT/
>
> Right - but if we're talking about gigabytes of photos and music, then
> that's less than ideal space-wise. Hence my bringing up Hybrid CDs.
So it sounds like you really want your gigabytes to be on the HFS side of the
*DVD* right? That certainly isn't supported at the moment, though I suppose
could be made to work. (I have no idea what a hybrid looks like
(automounting and such) to the system currently).
Er, let me be clear - sorry!
I don't actually want a Hybrid disc. I want the data to be
available in the live Linux system, as well as Windows and OS X. Windows
and OS X can read ISO9660 just fine, so there's no need for HFS.
This may be the relevent post, but doesn't add too much-
https://www.redhat.com/archives/fedora-livecd-list/2008-January/msg00080....
Thanks - that is relevant, and now I feel silly for having asked the same
question in a separate thread earlier today. (-:
To ask a question that I think *hasn't* been asked:
Let's say I want to store big files in the ISO and symlink them to the
user's $HOME. What's the appropriate way to, as part of the bootup
process, mount the DVD? I noticed that, upon booting the live system,
"mount /dev/cdrom" simply told me that it /dev/cdrom wasn't in the fstab.
The /dev/cdrom symlink was set properly, so I could just add /dev/cdrom to
the fstab myself or issue a mount command from an init script. But is
that really the right way to automatically mount the disc from which the
live system is booting?
-- Asheesh.
--
Will the third world war keep "Bosom Buddies" off the air?
7:27 p.m.
Asheesh Laroia wrote:
On Mon, 4 Feb 2008, Douglas McClendon wrote:
> Asheesh Laroia wrote:
>> On Mon, 4 Feb 2008, Tim Wood wrote:
>>
>>> I think you're looking for something like this. If bob had a file
>>> called 'my_file.html' in his home directory, he'd do this to copy
it
>>> to the root of the cd:
>>>
>>> %post --nochroot
>>> cp /home/bob/my_file.html $LIVE_ROOT/
>>
>> Right - but if we're talking about gigabytes of photos and music,
>> then that's less than ideal space-wise. Hence my bringing up Hybrid
>> CDs.
>
> So it sounds like you really want your gigabytes to be on the HFS side
> of the *DVD* right? That certainly isn't supported at the moment,
> though I suppose could be made to work. (I have no idea what a hybrid
> looks like (automounting and such) to the system currently).
Er, let me be clear - sorry!
I don't actually want a Hybrid disc. I want the data to be available in
the live Linux system, as well as Windows and OS X. Windows and OS X
can read ISO9660 just fine, so there's no need for HFS.
> This may be the relevent post, but doesn't add too much-
>
> https://www.redhat.com/archives/fedora-livecd-list/2008-January/msg00080....
>
Thanks - that is relevant, and now I feel silly for having asked the
same question in a separate thread earlier today. (-:
Don't worry, you are just bringing more attention to the need of better
documentation.
To ask a question that I think *hasn't* been asked:
Let's say I want to store big files in the ISO and symlink them to the
user's $HOME. What's the appropriate way to, as part of the bootup
process, mount the DVD? I noticed that, upon booting the live system,
"mount /dev/cdrom" simply told me that it /dev/cdrom wasn't in the
fstab. The /dev/cdrom symlink was set properly, so I could just add
/dev/cdrom to the fstab myself or issue a mount command from an init
script. But is that really the right way to automatically mount the
disc from which the live system is booting?
I think the answer you are looking for is /mnt/live.
It will be mounted, and refers to the cdrom iso9660, or the fs that
hosts the LiveOS on a LiveUSB.
-dmc
7:37 p.m.
On Mon, 2008-02-04 at 19:27 -0600, Douglas McClendon wrote:
Asheesh Laroia wrote:
> To ask a question that I think *hasn't* been asked:
>
> Let's say I want to store big files in the ISO and symlink them to the
> user's $HOME. What's the appropriate way to, as part of the bootup
> process, mount the DVD? I noticed that, upon booting the live system,
> "mount /dev/cdrom" simply told me that it /dev/cdrom wasn't in the
> fstab. The /dev/cdrom symlink was set properly, so I could just add
> /dev/cdrom to the fstab myself or issue a mount command from an init
> script. But is that really the right way to automatically mount the
> disc from which the live system is booting?
I think the answer you are looking for is /mnt/live.
It will be mounted, and refers to the cdrom iso9660, or the fs that
hosts the LiveOS on a LiveUSB.
Correct. /mnt/live is definitely what you want. Bind mounting or a
symlink from the user's desktop is probably the best thing to do. It's
something I've been looking at adding for the main live images, just
dependent on having the content to include that way.
Jeremy
7:39 p.m.
On Mon, 4 Feb 2008, Douglas McClendon wrote:
> To ask a question that I think *hasn't* been asked:
>
> Let's say I want to store big files in the ISO and symlink them to the
> user's $HOME. What's the appropriate way to, as part of the bootup
> process, mount the DVD? I noticed that, upon booting the live system,
> "mount /dev/cdrom" simply told me that it /dev/cdrom wasn't in the
> fstab. The /dev/cdrom symlink was set properly, so I could just add
> /dev/cdrom to the fstab myself or issue a mount command from an init
> script. But is that really the right way to automatically mount the
> disc from which the live system is booting?
I think the answer you are looking for is /mnt/live.
It will be mounted, and refers to the cdrom iso9660, or the fs that
hosts the LiveOS on a LiveUSB.
Hmm - my live DVD I built doesn't have the CD system mounted at /mnt/live.
Let me download an official Fedora 8 live disc and check that....
-- Asheesh.
--
No lifeguard on duty.
7:45 p.m.
On Mon, 4 Feb 2008, Asheesh Laroia wrote:
Hmm - my live DVD I built doesn't have the CD system mounted at
/mnt/live. Let me download an official Fedora 8 live disc and check
that....
Problem found - we don't include the Fedora /etc/rc.d/init.d/fedora-live
in our disc. Fixing now. (-:
-- Asheesh.
--
Go away, I'm all right.
-- H. G. Wells' last words.
8 p.m.
On Mon, 2008-02-04 at 17:45 -0800, Asheesh Laroia wrote:
On Mon, 4 Feb 2008, Asheesh Laroia wrote:
> Hmm - my live DVD I built doesn't have the CD system mounted at
> /mnt/live. Let me download an official Fedora 8 live disc and check
> that....
Problem found - we don't include the Fedora /etc/rc.d/init.d/fedora-live
in our disc. Fixing now. (-:
Yep, that'd do it. Note to self: need to work on getting the main parts
of that integrated into regular initscripts rather than hanging out off
by themselves
Jeremy
8:10 p.m.
On Mon, 4 Feb 2008, Jeremy Katz wrote:
On Mon, 2008-02-04 at 17:45 -0800, Asheesh Laroia wrote:
> On Mon, 4 Feb 2008, Asheesh Laroia wrote:
>> Hmm - my live DVD I built doesn't have the CD system mounted at
>> /mnt/live. Let me download an official Fedora 8 live disc and check
>> that....
>
> Problem found - we don't include the Fedora /etc/rc.d/init.d/fedora-live
> in our disc. Fixing now. (-:
Yep, that'd do it. Note to self: need to work on getting the main parts
of that integrated into regular initscripts rather than hanging out off
by themselves
Turns out we had forked it into a separate file (which we put in our
customization RPM...) and commented out the mounting of /mnt/live.
(Fixed in our RPM!)
Anyway, off-topic question: Do people have a suggestion for how to
auto-generate the thumbnails for Nautilus before the live CD runs. That
way, Nautilus will have pre-generated thumbnails for the images and
movies. That will look nice, plus avoid a TERRIBLE I/O storm caused by
Nautilus opening these folders and saying, "Oh, I'll make thumbnails now."
I'd like to script this process, like:
$ wget http://example.com/lotsa-images.zip
$ unzip lotsa-images.zip
$ magically_create_thumbnails
and put the resulting directory into the ISO.
-- Asheesh.
--
Shedenhelm's Law:
All trails have more uphill sections than they have downhill sections.
8:37 p.m.
On Mon, 2008-02-04 at 18:10 -0800, Asheesh Laroia wrote:
Anyway, off-topic question: Do people have a suggestion for how to
auto-generate the thumbnails for Nautilus before the live CD runs. That
way, Nautilus will have pre-generated thumbnails for the images and
movies. That will look nice, plus avoid a TERRIBLE I/O storm caused by
Nautilus opening these folders and saying, "Oh, I'll make thumbnails now."
I looked at this at one point and had something working. You want to
resize to an image that's < 128x128 and stick the thumbnail under
~/.thumbnails/normal. For a file that's (eg, for the fedora user)
~/Photos/me.png, the thumbnail would be
~/.thumbnails/normal/$(echo "file:///home/fedora/Photos/me.png" | md5sum)
If you come up with a nice script to do this, I'd be glad to include it
in livecd-tools as an example for others :-)
Jeremy
8:46 p.m.
On Mon, 4 Feb 2008, Jeremy Katz wrote:
On Mon, 2008-02-04 at 18:10 -0800, Asheesh Laroia wrote:
> Anyway, off-topic question: Do people have a suggestion for how to
> auto-generate the thumbnails for Nautilus before the live CD runs. That
> way, Nautilus will have pre-generated thumbnails for the images and
> movies. That will look nice, plus avoid a TERRIBLE I/O storm caused by
> Nautilus opening these folders and saying, "Oh, I'll make thumbnails
now."
I looked at this at one point and had something working. You want to
resize to an image that's < 128x128 and stick the thumbnail under
~/.thumbnails/normal. For a file that's (eg, for the fedora user)
~/Photos/me.png, the thumbnail would be
~/.thumbnails/normal/$(echo "file:///home/fedora/Photos/me.png" | md5sum)
echo -n, I presume. Hilariously the spec is a 403
<http://jens.triq.net/thumbnail-spec/> but it's available in the Wayback
Machine.
If you come up with a nice script to do this, I'd be glad to
include it
in livecd-tools as an example for others :-)
I'm disappointed to say I may make such a contribution. (-;
-- Asheesh.
--
What sin has not been committed in the name of efficiency?
5924
days inactive
5925
days old
livecd@lists.fedoraproject.org
13 comments
4 participants
participants (4)
-
Asheesh Laroia -
Douglas McClendon -
Jeremy Katz -
Tim Wood